Missouri Niswongers and before

I am trying to find out who and where we (Niswonger) came from before we settled in Missouri.Joseph Niswonger Sr. was the earliest Niswonger I could find related to me.His father, I’m not too sure of or where he came from or what his name was.I have seen a couple of referances to a Ulrich Neuswanger, Ulrich Neighswonger, and a George Christopher Niswonger as Joseph’s father.Who and where did the Niswongers come from before Missouri?Does anyone have any information?